Question # 1

The highest layer of OSI model is

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Physical layer

Network layer

Presentation layer

Application layer

Which one is not network topology?

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Star

Ring

Circle

Bus

Memory capacity may be expressed in.

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microseconds

kilobytes

bits

cycles

Network topologies are categorized into the following basic types

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Bus, Ring

Star , Tree

Mesh

All of the above

The central processing unit comprises of

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memory ,VDU and printers

input devices output devices and memory

software arithmetic and logic unit,and control unit

software,hardware,and power supply unit

Another name for a logic chip is.

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PROM

memory

microprocessor

ROM

How many pairs of computers can simultaneously communicate on Ethernet LAN

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1

3

Multiple

4

The heart of a digital computer is....

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control unit

memory unit

logic unit

visual display unit

At the beginning of the instruction cycle, the contents of the Instruction Register specify.

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Operand for the instruction being executed

Instruction itself

Operand for the instruction to be executed next

None of above

Desktop and personal computers are other names for.

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micro computers

mini computers

mainframes

peripheral equipment

Which is not associated with the main memory of computer.

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semiconductor memory

core memory

read only memory

sequential memory

A computer can be defined as an electronic device that can: (choose the most precise definition).

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carry out logical functions

carry out arithmetical operations

accept and process data using a set of stored instructions

present information on a VDU

The most common protocol used in WAN is

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Ethernet

X.25

IEEE

ISO

A bus line consists of.

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registers

accumulators

parallel data paths

machine cycles

A LAN is a combination of.

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LAN cables

Network adapter card

LAN Application Software

All of the above

Software to persue the Internet

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Gateway

Videoconferencing

Browser

Teleconferencing

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ECAT Computer Science Chapter 2 Digital Computer Fundamentals Online Test MCQs With Answers

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